The Prince of Wales was said to be so impressed with Kristina Kyriacou, the long-term mentor to the 'Call My Name' singer who accompanied her on the visit, that he has hired her to help run his charity endeavours.

"It's a big move," a source told The Daily Telegraph. "His Royal Highness was frustrated that his charities, which do so much good work, were not getting the public attention that they deserve.

"He was very impressed with Miss Kyriacou and the work that she has done for the Prince's Trust with Cheryl Cole. He's convinced that she is just the person he needs to take his charities forward."